Higgless W unitarity from decoupling deconstruction
Evans, Nick and Membry, Phil (2004) Higgless W unitarity from decoupling deconstruction. Pre-print, 1-10. (arXiv:hep-ph/0406285v2).
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Description/Abstract
Recently there has been interest in electroweak models on a five dimensional interval that break the symmetry without a higgs boson. By warping the metric of the interval it may be possible to avoid experimental bounds on extra W bosons and delta rho. Five dimensional models necessarily require an explicit UV cut-off to remain perturbative, such as that provided by deconstruction. We study a simple deconstruction of this scenario with a chain of SU(2)^N+1 x U(1)_Y groups linked by bi-fundamental higgs. There are two interesting decoupling limits of this model, when the higgs vevs are taken large and when the SU(2) couplings grow, which might provide a perturbative realization. In fact it is very challenging to satisfy all the experimental bounds and the most compatible scenario has both a higgs and a relatively strongly coupled new W both close to 2 TeV .
| Item Type: | Article |
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| Related URLs: | |
| Subjects: | Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > School of Physics and Astronomy |
| Item ID: | 57199 |
| Date Deposited: | 13 Aug 2008 |
| Last Modified: | 02 Mar 2012 11:50 |
| Contributors: | Evans, Nick (Author) Membry, Phil (Author) |
| Date: | 25 June 2004 |
| Status: | Published |
| URI: | http://eprints.soton.ac.uk/id/eprint/57199 |
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